TECNO Buds 4 Air True Wireless Stereo Earbuds
The TECNO Buds 4 Air (Model: BD04 Air) True Wireless Stereo Earbuds combine ultra-lightweight ergonomic comfort with crisp audio performance and modern wireless connectivity. Weighing just 3.3g per earbud, they feature 10mm dynamic drivers that deliver balanced sound profiles with rich bass and clear vocal clarity. Equipped with Bluetooth 5.4 for fast pairing and low-latency audio transmission, the Buds 4 Air also feature AI Environmental Noise Cancellation (ENC) with dual microphones to filter out background noise for crystal-clear hands-free calls. Supported by a compact charging case, they provide up to 6 hours of continuous playback on a single charge and up to 22 hours of total playtime, making them an ideal everyday audio companion.
- Featherlight Ergonomic Fit: Ultra-compact design weighing only 3.3g per earbud for comfortable long-duration listening sessions.
- Bluetooth 5.4 Wireless Standard: Powered by advanced Bluetooth 5.4 for enhanced energy efficiency, rapid device pairing, and low-latency audio sync.
- AI Environmental Noise Cancellation (ENC): Dual-microphone system backed by AI algorithms ensures clear voice transmission during mobile calls.
- Up to 22-Hour Total Battery Life: Provides 6 hours of standalone playback from the earbuds, extended to 22 hours via the USB-C charging case.
- IPX4 Splash & Sweat Resistance: Durable build rating protects the earbuds against workout sweat and light outdoor rain.
Technical Specifications
| Feature | Specification |
|---|---|
| Brand / Model | TECNO / Buds 4 Air (Model: BD04 Air) |
| Form Factor | Half In-Ear True Wireless Stereo (TWS) Earbuds |
| Audio Driver Size | 10 mm Dynamic Driver |
| Call Noise Reduction | Dual Microphones with AI Environmental Noise Cancellation (ENC) |
| Bluetooth Version | Bluetooth 5.4 |
| Bluetooth Protocols | HFP, A2DP, AVRCP |
| Wireless Operating Range | 10 Meters / 33 Feet (Unobstructed) |
| Latency Mode | Low-Latency Audio Sync Mode for Gaming & Video Streaming |
| Earbud Battery Capacity | 35 mAh per earbud |
| Charging Case Capacity | 320 mAh |
| Playback Time (Single Charge) | Up to 6 Hours (at 50% Volume) |
| Total Playtime (With Case) | Up to 22 Hours Total Battery Endurance |
| Charging Interface | USB Type-C (5V / 1A Input) |
| Water Resistance Rating | IPX4 Water & Sweat Resistance (Earbuds only) |
| Smart Connectivity Features | Auto Quick Connect Pop-up (Supported on HiOS 14+ Devices) |
| Companion App Support | TECNO Welife App (Sound EQ Customization & Touch Control Settings) |
| Physical Weight | 3.3 g (Single Earbud) / 29 g (Earbuds + Charging Case) |
| Earbud Dimensions | 23.2 × 23.0 × 33.1 mm |
| Charging Case Dimensions | 55.7 × 46.9 × 25.2 mm |
| Warranty | One-year brand warranty. |
Frequently Asked Questions
What battery or energy specifications are listed?
Earbud Battery Capacity: 35 mAh per earbud.
What charging specification is listed?
Charging Case Capacity: 320 mAh.
How does this product connect?
Bluetooth Version: Bluetooth 5.4.
What noise-control features are listed?
Call Noise Reduction: Dual Microphones with AI Environmental Noise Cancellation (ENC).
Which connection ports are listed?
Charging Interface: USB Type-C (5V / 1A Input).
What speaker or driver specification is listed?
Audio Driver Size: 10 mm Dynamic Driver.
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